According to a report from The Sydney Morning Herald, Microsoft's confirmed it's already developing Natal 2: 7-9 months before the first one even releases.
Speaking with the Australian newspaper, the Microsoft Research Asia boss Hsiao-Wuen Hon said work was already being carried out on a second version of the camera.
"When we do invent something first like the Natal kind of scenario," said Hon, "while we have a researcher working with the product group for the first version, we already have a researcher thinking about the second version down the road."
He further added: "We certainly hope we will continue to be holding that technology. I really love what Microsoft is doing."
The first version of Natal is due out by the end of the year. Its full name will be revealed at E3 in June.